diff --git a/billing.go b/billing.go
index 4798f9d..052050c 100644
--- a/billing.go
+++ b/billing.go
@@ -18,24 +18,27 @@ type (
 		UpdateTime          time.Time           `json:"update_time,omitempty"`
 		Links               []Link              `json:"links,omitempty"`
 	}
+
+	// CreateAgreementResp struct
+	CreateAgreementResp struct {
+		Name        string      `json:"name,omitempty"`
+		Description string      `json:"description,omitempty"`
+		Plan        BillingPlan `json:"plan,omitempty"`
+		Links       []Link      `json:"links,omitempty"`
+		StartTime   time.Time   `json:"start_time,omitempty"`
+	}
 )
 
 // CreateBillingPlan creates a billing plan in Paypal
 // Endpoint: POST /v1/payments/billing-plans
 func (c *Client) CreateBillingPlan(plan BillingPlan) (*CreateBillingResp, error) {
 	req, err := c.NewRequest("POST", fmt.Sprintf("%s%s", c.APIBase, "/v1/payments/billing-plans"), plan)
-	if err != nil {
-		return &CreateBillingResp{}, err
-	}
-
 	response := &CreateBillingResp{}
-
-	err = c.SendWithAuth(req, response)
 	if err != nil {
 		return response, err
 	}
-
-	return response, nil
+	err = c.SendWithAuth(req, response)
+	return response, err
 }
 
 // Activates a billing plan
@@ -51,3 +54,15 @@ func (c *Client) ActivatePlan(planID string) error {
 	req.Header.Set("Authorization", "Bearer "+c.Token.Token)
 	return c.SendWithAuth(req, nil)
 }
+
+// Creates an agreement for specified plan
+// Endpoint: POST /v1/payments/billing-agreements
+func (c *Client) CreateBillingAgreement(a BillingAgreement) (*CreateAgreementResp, error) {
+	req, err := c.NewRequest("POST", fmt.Sprintf("%s%s", c.APIBase, "/v1/payments/billing-agreements"), a)
+	response := &CreateAgreementResp{}
+	if err != nil {
+		return response, err
+	}
+	err = c.SendWithAuth(req, response)
+	return response, err
+}
diff --git a/types.go b/types.go
index e0e8edc..70b97bb 100644
--- a/types.go
+++ b/types.go
@@ -44,6 +44,9 @@ const (
 )
 
 type (
+	// JsonTime overrides MarshalJson method to format in ISO8601
+	JsonTime time.Time
+
 	// Address struct
 	Address struct {
 		Line1       string `json:"line1"`
@@ -93,13 +96,24 @@ type (
 		SenderBatchHeader *SenderBatchHeader `json:"sender_batch_header,omitempty"`
 	}
 
+	// BillingAgreement struct
+	BillingAgreement struct {
+		Name            string           `json:"name,omitempty"`
+		Description     string           `json:"description,omitempty"`
+		StartDate       JsonTime         `json:"start_date,omitempty"`
+		Plan            BillingPlan      `json:"plan,omitempty"`
+		Payer           Payer            `json:"payer,omitempty"`
+		ShippingAddress *ShippingAddress `json:"shipping_address,omitempty"`
+	}
+
 	// BillingPlan struct
 	BillingPlan struct {
-		Name                string              `json:"name,omitempty"`
-		Description         string              `json:"description,omitempty"`
-		Type                string              `json:"type,omitempty"`
-		PaymentDefinitions  []PaymentDefinition `json:"payment_definitions,omitempty"`
-		MerchantPreferences MerchantPreferences `json:"merchant_preferences,omitempty"`
+		ID                  string               `json:"id,omitempty"`
+		Name                string               `json:"name,omitempty"`
+		Description         string               `json:"description,omitempty"`
+		Type                string               `json:"type,omitempty"`
+		PaymentDefinitions  []PaymentDefinition  `json:"payment_definitions,omitempty"`
+		MerchantPreferences *MerchantPreferences `json:"merchant_preferences,omitempty"`
 	}
 
 	// Capture struct
@@ -486,3 +500,8 @@ type (
 func (r *ErrorResponse) Error() string {
 	return fmt.Sprintf("%v %v: %d %s", r.Response.Request.Method, r.Response.Request.URL, r.Response.StatusCode, r.Message)
 }
+
+func (t JsonTime) MarshalJSON() ([]byte, error) {
+	stamp := fmt.Sprintf(`"%s"`, time.Time(t).UTC().Format(time.RFC3339))
+	return []byte(stamp), nil
+}